Lighting fixture



Dec. 1924- A. R. LOCKE LIGHTING FIXTURE.

Filed July 26 W f/ wm fa \//VIII'II 69 0 6 @IUImU/ Ja /621L 01" iii Patented Dec. 9, 1924.

UNITED STATES ALBERT It. LOCKE, OF CHICAGO, ILLINOIS.

LIGHTING FIXTURE.

Application filed July 26, 1922.

1 all whom it may concern:

Be it known that I, ALBERT R. LOOKE, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lighting Fixtures, of which the following is a specification.

This invention relates to lighting fixtures.

It relates more particularly to a lamp and reflector supporting fixture for use in the coves and stages of theatres and in other cations where indirect and reflected illumination is desired.

One of the objects of the invention is to provide an improved lighting fixture.

Another object is to provide an improved fixture for carrying the wiring and supporting the lamps and reflector.

Another object is to provide a fixture which may be inexpensively produced and installed.

Another object is to provide a fixture wherein the reflector is readily removable for installation, cleaning and repairs.

Other objects and advantages will hereinafter appear.

An embodiment of the invention is illustrated in the accompanying drawing, wherein Fig. 1 is a front elevation of a portion of a fixture.

Fig. 2 is an enlarged section on the line 22 of Fig. 1.

Fig. 3 is an enlarged rear perspective of a removable reflector section of the fixture.

Fig. 4: is a perspective of the clip for coupling the upper edges of two adjacent reflector sections, and

Fig. 5 is an enlarged elevation of the latch for locking the reflector to the support.

In general, the fixture comprises a boxlike support 1, and a sectioned removable reflector 2. The support carries the lamps and reflector and houses the wiring. The reflector reflects the l ght from the lamps as desired.

Support 1 is formed from two pieces of suitable sheet metal, an open topped trough 3 and a cover 4. Cover t is provided with a pair of flanges 5 which fit over the'opposite edges of trough 3 to form a box-like structure. The edges of trough 3 may be bent inwardly to form small curved flanges 6 which facilitate the placing of the cover. The cover and trough may be held together by suitable means, such as bolts 7.

Serial No. 577,715.

Cover 4 is provided with a series of holes through which are exposed the plug receiving receptacles of lamp sockets 8. Lamp sockets 8 may be secured to cover fl: by suitable means, such as screws 9 which cooperate with suitable threaded members associated with the sockets.

The box-like support thus carries the lamps above its cover and provides a readily accessible protecting passage for the wiring. The wiring may be laid before the cover is placed and subsequently may be readily inspected by removing the cover. The support may be produced in sections of any desired length which may be installed end to end to fill the space required. If desired, the exposed open ends of the end sections may be closed by sheet metal panels.

Each reflector section (three complete sections are shown in Fig. 1) has a suitable back or supporting framework 15, formed on a proper curve to give the desired reflecting effect. This framework may be formed from a single piece of sheet metal. In the reflector section chosen for illustration the framework is curved along three parallel longitudinal lines 16, 17 and 18 to form in tervening spaces for three substantially flat rectangular mirror sections 19, 20 and 21. These mirror sections lie against the flat inner surfaces of framework 15 to form a concave reflector.

The upper edge of framework 15 is bent over to form a channel 22 for receiving the upper longitudinal edge of mirror section 21. The ends of the mirror sections may be held in place by small tongues 23 which are struck out from framework 15 and bent backwardly around the end of the mirror. These tongues, or preferably the tongues at. one end of the framework, may be bent over after the mirror sections are placed in position. Framework 15 is cut to provide a number of small tongues 24 which are bent inwardly over the lower edge of mirror sect1on 19 to hold the lower section in place against the next section.

The lower ed e of framework 15 is area l. vided with an integral inwardly extending flan e 25 which forms a foot for su aortin b b the reflector SGCtlOIl on the box-like support. Ad acent opposite ends, framework 15 is provided with supporting posts 26. Each post, which may be of relatively stiff wire, is bent to conform to the back of framework 15 and is secured thereto by suitable means.

lit)

A satisfactory arrangement is provided by slitting the metal of the framework and bending the metal between the slits outwardly to form a small loop 27. Posts 26 are inserted through these loops and anchored by solder. The lower ends of posts 26 project below framework 15 and are adapted to be received in holes in cover 4:. The ends of the posts are received in a socket between the side of trough 3 and flange 5 of cover 4: and are thereby rigidly held in an upright position to support the corresponding reflector section. Adjacent reflector sections may be held in proper alignment by U-shapcd clips 28 which may be sprung over and overlap the upper adjacent corners of the reflector sections.

The support and reflector may be locked together by latches 29 which are rotatably secured to cover 4. Adjacent each latch flange 25 is slit to form a tongue 30 below which the latch may be turned as shown particularly in Fig. 5. By turning the latches to the dotted line position the reflector is unlocked and may be lifted from the support.

The support of the reflector may be read ily installed behind the projecting walls or in troughs or other suitable concealed locations where the reflected illumination is desired. By the proper selection of the lengths of support sections curved and straight installations are easily made. The wiring is readily laid through the ooen top of the support trough.

After the support sections are installed and the wiring and lamps positioned the reflector sections readily may be slipped into place. The breakage and bending of the reflectors which are so common. with the installation of the ordinary fixtures is thus eliminated, because the mirrors and reflector framework need not be placed in position until all of the other installation work and cleaning is finished. Whenever it is necessary to inspect or repair the wiring or clean the reflectors or about the fixture the reflectors may be quickly removed and saved from injury.

Having described by invention what 1 claim as new and desire to secure by Letters Patent, is

1. A lighting lixture comprising a boxlike support for carrying wiring and having a series of openings in one side for lamps; and a reflector having a framework for carrying mirrors, and a plurality of posts attached to the framework and for reception in openings in the support.

2. A reflector comprising a sheet .metal framework bent to conform to the desired curvature and having channel shaped e ges, mirror sections lying against the :lramcwork and held by the channel shaped edges thereof, and a plu 'ality of posts secured to the back of the framework and projecting below the lower edge thereof for reception in supporting sockets.

3. A detachable reflector comprising a sheet metal framework formed with a. supporting flange along one edge and channels along other edges, mirror section lying against the framework and held by the channels, tongues bent from the framework to assist in holding the mirror sections, and a. plurality of posts secured to the framework and projecting beyond the supporting flange for reception in supporting sockets.

In testimony whereof I hereunto subscribe my name.

ALBERT R. LUCKE. 

